This page explains how Kraig Anderson (USATT# 91084)'s rating went from 1298 to 1221 at the $6000 Nittaku Ohio Open held on 21 Jan 2022 - 22 Jan 2022. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.